org.waarp.common.database.model

Class DbModelPostgresql

java.lang.Object

org.waarp.common.database.model.DbModelAbstract

org.waarp.common.database.model.DbModelPostgresql

All Implemented Interfaces:

DbModel

public abstract class DbModelPostgresql
extends DbModelAbstract

PostGreSQL Database Model implementation

Author:

Frederic Bregier

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	DbModelPostgresql.DBType

Field Summary

Fields

Modifier and Type	Field and Description
protected Boolean	useIsValid

Constructor Summary

Constructors

Constructor and Description
DbModelPostgresql() Create the object and initialize if necessary the driver

Method Summary

Methods

Modifier and Type	Method and Description
void	createTables(DbSession session) Create all necessary tables into the database
DbType	getDbType()
String	limitRequest(String allfields, String request, int nb) Add a limit on the request to get the "limit" first rows.
long	nextSequence(DbSession dbSession)
void	resetSequence(DbSession session, long newvalue) Reset the sequence (example)
void	validConnection(DbSession dbSession) Validate connection
protected String	validConnectionString()

Methods inherited from class org.waarp.common.database.model.DbModelAbstract

closeInternalConnection, currentNumberOfPooledConnections, getDbConnection, releaseResources, validConnectionSelect

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.waarp.common.database.model.DbModel

needUpgradeDb, upgradeDb

Field Detail

useIsValid

protected Boolean useIsValid

Constructor Detail

DbModelPostgresql

public DbModelPostgresql()
                  throws WaarpDatabaseNoConnectionException

Create the object and initialize if necessary the driver

Throws:

WaarpDatabaseNoConnectionException

Method Detail

getDbType

public DbType getDbType()

Returns:

the current DbType used

validConnection

public void validConnection(DbSession dbSession)
                     throws WaarpDatabaseNoConnectionException

Description copied from interface: DbModel

Validate connection

Specified by:

validConnection in interface DbModel

Overrides:

validConnection in class DbModelAbstract

Throws:

WaarpDatabaseNoConnectionException

createTables

public void createTables(DbSession session)
                  throws WaarpDatabaseNoConnectionException

Description copied from interface: DbModel

Create all necessary tables into the database

Parameters:

session - SQL session

Throws:

WaarpDatabaseNoConnectionException

resetSequence

public void resetSequence(DbSession session,
                 long newvalue)
                   throws WaarpDatabaseNoConnectionException

Description copied from interface: DbModel

Reset the sequence (example)

Parameters:

session - SQL session

Throws:

WaarpDatabaseNoConnectionException

nextSequence

public long nextSequence(DbSession dbSession)
                  throws WaarpDatabaseNoConnectionException,
                         WaarpDatabaseSqlException,
                         WaarpDatabaseNoDataException

Returns:

The next unique specialId

Throws:

WaarpDatabaseNoConnectionException

WaarpDatabaseSqlException

WaarpDatabaseNoDataException

validConnectionString

protected String validConnectionString()

Specified by:

validConnectionString in class DbModelAbstract

Returns:

the associated String to validate the connection (as "select 1 from dual")

limitRequest

public String limitRequest(String allfields,
                  String request,
                  int nb)

Description copied from interface: DbModel

Add a limit on the request to get the "limit" first rows. Note that it must be compatible to add the "limit" condition.
DO NOT CHANGE (add) ANYTHING to the request
On Oracle: select allfield from (request) where rownnum <= limit
On others: request LIMIT limit

Parameters:

allfields - string representing the equivalent to "*" in "select *" but more precisely as "field1, field2" in "select field1, field2"

Returns:

the new request String which will limit the result to the specified number of rows